OEM Carrier Pressure Switch with Bracket (HK06NB124) for Model PG9MAA024040AEKA

This is the factory OEM pressure switch with integrated mounting bracket for the Carrier PG9MAA024040AEKA gas furnace. The pressure switch is a critical safety component that monitors negative pressure created by the inducer draft motor. It confirms the inducer is operating correctly before allowing the control board to advance to the ignition sequence. A failed or out-of-spec pressure switch will prevent the furnace from firing entirely, often triggering a fault code indicating a "pressure switch open" or "inducer proving" error on the control board.

• Specs: OEM part number HK06NB124 | Includes factory mounting bracket | Rated water column (W.C.) matched to Carrier PG9MAA024040AEKA factory specification | Direct drop-in replacement, no modification required
• OEM vs Generic: This is a genuine Carrier OEM switch calibrated to the exact W.C. rating required by this furnace. Aftermarket switches frequently deviate in trip point, risking nuisance lockouts or, more critically, failing to detect a true inducer fault — a serious safety concern.
• Install difficulty: 2/5 — Turn off gas and 24V power at the breaker before beginning. Tools needed: 1/4" nut driver, flat-head screwdriver, and a manometer (optional, for W.C. verification). Disconnect the hose port and two wiring terminals, unbolt the bracket, and reverse the process to install. Always confirm hose is free of condensate blockage before reassembly.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Designed specifically for the Carrier PG9MAA024040AEKA packaged gas furnace. Always verify your existing switch's W.C. rating on the component label before ordering to confirm this is the correct switch for your application variant. Our fitment team is available to confirm compatibility before you buy.